Add core game components including ConfigFileHandler, GameManager, SaveSystem, and UIManager

scripts/interfaces/IMovement.cs

@@ -0,0 +1,13 @@
+using Godot;
+
+namespace Mr.BrickAdventures.scripts.interfaces;
+
+public interface IMovement
+{
+    string MovementType { get; }
+    bool Enabled { get; set; }
+    Vector2 PreviousVelocity { get; set; }
+    
+    void _Process(double delta);
+    void _PhysicsProcess(double delta);
+}